Automatic train stop



Nov. 16 1926.

J. TOzsER 7 AUTOMATIC TRAIN STOP FiledApril 15, 1926 3 Sheets-Sheet 1 Nov. 16 1926.

J. TOZSER AUTOMATIC- TRAIN STOP Filed April 1926 3 Sheets-Sheet 2 mm NM IN VEN TOR Ui'l'b se'v- A T ORNE J AUTOMATIC TRAIN STOP Filed April 15, 1926 5 Sheets-Sheet 5 Patented Nov. 16, 1926.

JOSEPH rozsnn, or OSHAWA, ONTARIO, CANADA. 7

AUTOMATIC TRAIN STOP.

Application filed April 15,

This invention relates to certain new and useful improvements in automatic train stops and has for its primary object to provide trip devices arranged adjacent the track rails andadapted to be shifted to a position for engagement by the wheels of rolling stock passing thereover for operating a second trip device that effects operation of the air brake mechanism on the in train for applying the brakes.

A furtherobject of the invention is to provide an automatic train stop of the type above set forth wherein the trip devices arranged along the track are shifted to their operative positions for releasing the air line on the train upon the operation of electrical devices for set-ting a lamp signal.

With the above and other objects in view that willbecome apparent as the nature of ,4 4

being electrically shifted through the methe invention is better understood, the same consists of the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying W drawings and claimed.

In the drawings, wherein like reference characters designate corresponding parts throughout the several views,

Figure 1 is a fragmentary perspective view of a portion of a railroad track showing the trip devices for operating the air'brakc mechanism on the train arranged adjacent one of the track rails and the signal lamp associated with one of the trip devices,

Figure 2 is a top plan view of the track section, V

Figure 3 is a vertical longitudinal sectional view through two spaced casing structures'that enclose the operating mechanism for the track trip devices with the trip devices in inoperative position,

Figure 41- is a vertical longitudinal sectional view similar to Fig. 3 with one of the trip devices in its set position for operating the other trip device when depressed by a wheel of the rolling stock,

Figure 5 is a vertical longitudinal sectional view similar to Figs. 3 and 4 showing a locomotive rolling over the'track trip devices,

Figure 6 is a detail view, partly in section of the trip operated releasing valve for the air brake line, and

Figure 7 is a detail sectional view of the tion between'the ljournaled shaft supportsignal lamp standard showing the connecp 1926. Serial N0. 102,167.

ing thesignal lamp and one of the track trip devices.

As shown in Figures 1 and 2, the track rails 1.0 and 11 are supported on the cross ties 12 with a movably mounted trip plate 13 disposed adjacent the outer side of the rail to be engaged by the front wheel 14 of the locomotive 15 and having operative connections with the trip plate 16 movably mounted at a pointinwardly of the rail 10 to engage the plunger rod 17 shown in Fig. 6 for releasing a valve in'the air brake line 18 for theautomatic application of the wheel brakes. The signal lamp 1.9 rotatably supported in the casing stand 20 is operatively connected to the track trip 13 for automatically raising the trip 13 to its operative set position when the signal lamp 1.9.is moved to its stop position, the lamp dium of the wiring illustrated in Fig. 1 in any appropriate manner and as a further warning to the engineer of the train, the semaphore 21 upon the post 22 may be simultaneously shifted to its horizontal stop position.

The track trip 13 is associated with operating mechanism therefor housed within the casing 23 shown more clearly in Figures 3 to 5 as being disposed beneath the track rail 10, a lug 24 depending from one end of the trip 13 and pivotally supported at its lower end upon the bracket 25. l The pin 26 depending from the forward curved end 13 of the tripv 13 slides through a guide block 27. The operating mechanism for thetrip 13 further includes a standard 28 supported uponthe bottom wall of the casing 23 and upon the upper end of which ,a lever 29 is pivotally supported intermediate its ends. As shown in Fig. 7, the signal lamp 19 is carried by the vertical shaft 30 that is journaled in the casingstand 20 and has a bevel gear connection31 at its rot lower end with the shaft 32' extending,

through a side wall of the casing stand 20 and enteringthe casing 23 as shown in.

with one end of the. lever 29.'

' A disk wheel 35 is rotatably supported in the casing upon the bearings 36 and carries a laterally projecting pin 37 adjacent its eripheral edge that is received in the slotted end 38 of the link;,39. jthatjispivotally atthe connections between the two trips including rotatable members having link-connections with the free ends of the trips, tensioned lever and link devices connected to the rotatable member associated with the trip that engages the valve operating rod and an arm projecting radially from the rotatable member associated. with the wheel operated trip and movable into engagement with the tensioned lever and link devices for operating the latter when the wheels of rolling stock pass over the last named trip.

2. In an automatic train stop, a pair of track trips, one of said trips being operated by the wheels of, rolling stock, an air line valve operating rod engaged by the other trip, connections between the trips to cause movement of the valve operating trip to its set position upon operative depression of the wheel operated trip, both of said trips being pivotally mounted, the connections between the two trips including rotatable members having linkconnections with the free ends of the trips, tensioned lever and link devices connected to the rotatable member associated with the trip that engages the valve operating rod, and an arm projecting'radially fromthe rotatable member associated with the wheel operated trip and movable into engagement with the tensioned lever and link devices for operatingthe latter when the wheels of rolling stock pass over the last named trip.

3. In an automatic train stop, a pair of track trips, one of said trips being operated by the wheels of rolling stock, an air line valve operating rod engaged by the other trip, operative connections between the two trips, a stop signal lamp operatively connected to the wheel operated trip for moving the same to its operative position when the lamp is moved to stop position, both of said trips being pivotally mounted, the connections between the two trips including rotatable members having link connections with the free ends of the trips, tensioned lever and link devices connected to the ro-.

tatable member associated with the trip that engages the valve operating rod and an arm projecting radially from the rotatable member associated with the wheel operated trip and movable into engagement with the tensioned lever and link devices for operating the latter when the wheels of rolling stock pass over the last named trip.

4. In an automatic train stop, a pair of track trips, one of said trips being operated by the-wheels of rolling stock, an air line valve operating rod engaged by the other trip, connections between the trips to cause movement of the valve operating trip to its set position upon operative depression of the wheel operated trip, a stop signal lamp operatively connected to the wheel operated trip for moving the same to its operative position when: the lamp is moved to stop position, both of said trips being pivotally mounted, the connections between the two trips including rotatable members having link connections with the free ends of the trips, tensioned lever and link devices c0n by the wheels of rolling stock, an air line valve operated rod engaged by the other trip, operative connections between'the two trips, both of said trips'being pivotally mounted, the connections between the two trips including rotatable members having link connections with the free ends of the trips, tensioned lever and link devices connected to the rotatable member associated with the trip that engages the valve operating rod, an arm projecting radially from the rotatable member associated with the wheel operated trip and movable into engagement with the tensioned. lever and link devices for operating the latter when thewheels of rolling stock pass over the last named. trip, the tensioned lever and link devices comprising abracket, a bell crank lever supported on the bracket, a spring interposed between the bracket and the end of one leg of the lever, a rod connecting the other lever leg to the rotatable member associated with thetrip for the valve operating rod and the arm on the rotatable member being movable into engagement with the spring pressed end of the bell crank lever.

6. In an automatic train stop, a pair of track trips, one of said trips being operated by the wheels of rolling stock, an air line valve operating rod engaged by the other trip, connections between the trips to cause movement of the valve operating trip to its.

set position upon operative depression of the wheel operated trip, both of said trips being pivotally mounted, the connections between the two trips including rotatable members having link connections with the free ends of the trips, tensioned lever and link de-' vices connected to the rotatable member as sociated with the trip that engages the valve operating rod, an arm projecting radially from the rotatable member assocated with the wheel operated trip and movable into engagement with the tensioned lever and link devices foroperating the latter when the wheels of rolling stock pass over the last named trip, thetensioned lever and lin'k de vices com nising a br'acket,"a bell crank lever supported on the bracket, a spring interposed between the bracket and the end of one leg of the lever, a rod connectingthe other lever leg to the rotatable member associated with the trip for the valve operating rod and the arm on the rotatable member bein movable into engagement withthe spring pressed end of the bell crank lever.

7. ln an automatic train stop, a'pair of trips, one of said trips being operated by the wheels 0t rolling stock, an air line valve operating rod engaged by theothcr trip, operative connections between the two trips, a stop signal lamp operatively connected to the wheel operated trip for moving the same to its operative position when the lan'ip is moved to stop position, both of said trips being pivot-ally monnte d, the connections between the two tr'os includin rotatable. meml'iers having;- nk connections with the tree ends of the tri as, tensioned lever and link devices connected to the r0- tatable member associated with the. trip that engages the valve operating rod, an arm projecting radially "from the rotatable member associated with'the wheel operated trip and movable into engagement with the tensionedleve'r andlink devices for operating the latter when the wheels 01 rolling stock pass over the last named tripfthe tensioned lever and'linkdevices comprising a"brack et, a bell crank lever supported on the bracket, a spring interposed between the bracket and the end of one leg of the lever, a rod connecting the other lever leg to the rotatable member associated with the trip for the valve operating rod and the arm onthe rotatable member being'movable into engagement withthe spring pressed end of the bell crank lever.

8. in an automatic train stop, a pair of trips, one of said trips being'operated by the wheels of rolling stock, an air line valve operat ng'rodengaged by the other a; CODHGCiiiODS between the trips to cause movement or the valve operating trip to its set position upon operative depression of the wheel operated trip, a stop signal *np o iei-atirely connected to the wheel operated trip tor moving the same to itsopire pos ion when the lamp is moved to I) positon, both of said trips being pivotally mounted, the connections between the two tripsinclmling rotatable members having link connections with the free ends of the tri )S, tensionedlever and'link devices connected to the rotatable'member associated with the trip that engages'the valve operating rod, an arm projecting radially from the rotatable mei'nber associated with the wheel operated trip and movable into engagen'ient with the tensioned lever and link devices for operating the latter when the wheels of rolling stock pass over the lastnarzied trip, the tensioned lever and link devices comprising a bracket, a bell crank lever supported on the bracket, a spring interposed between the bracket and the end of one leg of the lever, a rod connecting the other lever leg to the rotatable member assoeiatec with'the trip for the valve operating rod andthe arm on the rotatable mem' her being movable into engagement with the spring:- pressed end of the bell crank lever.

In testimony whereoi I aflix my signature.

Josnrn rozsn'n.

ill 

